/* Lumen Habitat - feuille de style unique */

:root {
  --lum-bleu: #1d6fe0;
  --lum-bleu-fonce: #1657b4;
  --lum-blanc: #ffffff;
  --lum-encre: #14243b;
  --lum-secondaire: #5a6b82;
  --lum-bleu-clair: #eaf2fd;
  --lum-ombre: 0 12px 34px rgba(29, 111, 224, 0.12);
  --lum-ombre-douce: 0 6px 18px rgba(20, 36, 59, 0.07);
  --lum-radius: 18px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Corbel, 'Segoe UI', 'Century Gothic', 'Trebuchet MS', sans-serif;
  color: var(--lum-encre);
  background: var(--lum-blanc);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--lum-bleu);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img, svg {
  max-width: 100%;
}

.lum-container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* En-tete */
.lum-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--lum-bleu-clair);
}

.lum-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 24px;
  max-width: 1120px;
  margin: 0 auto;
}

.lum-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--lum-encre);
}

.lum-brand:hover {
  text-decoration: none;
}

.lum-brand-mark {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
}

.lum-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}

.lum-nav-links a {
  color: var(--lum-secondaire);
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

.lum-nav-links a:hover {
  background: var(--lum-bleu-clair);
  color: var(--lum-bleu);
  text-decoration: none;
}

.lum-nav-links a.is-active {
  background: var(--lum-bleu);
  color: var(--lum-blanc);
}

/* Boutons */
.lum-btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.lum-btn-primary {
  background: var(--lum-bleu);
  color: var(--lum-blanc);
  box-shadow: var(--lum-ombre);
}

.lum-btn-primary:hover {
  background: var(--lum-bleu-fonce);
  transform: translateY(-2px);
  text-decoration: none;
}

.lum-btn-ghost {
  background: var(--lum-blanc);
  color: var(--lum-bleu);
  border-color: var(--lum-bleu-clair);
}

.lum-btn-ghost:hover {
  border-color: var(--lum-bleu);
  text-decoration: none;
}

/* Hero */
.lum-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #f5f9ff 0%, var(--lum-bleu-clair) 55%, #dcebfd 100%);
}

.lum-hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 48px;
  padding: 84px 0 92px;
}

.lum-eyebrow {
  display: inline-block;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--lum-bleu);
  background: var(--lum-blanc);
  padding: 7px 15px;
  border-radius: 999px;
  box-shadow: var(--lum-ombre-douce);
  margin-bottom: 20px;
}

.lum-hero h1 {
  font-size: 2.9rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.lum-hero h1 .lum-accent {
  color: var(--lum-bleu);
}

.lum-hero p {
  font-size: 1.15rem;
  color: var(--lum-secondaire);
  max-width: 34ch;
  margin-bottom: 30px;
}

.lum-hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* Titres de section */
.lum-section {
  padding: 78px 0;
}

.lum-section-alt {
  background: linear-gradient(180deg, var(--lum-blanc) 0%, #f6faff 100%);
}

.lum-section-head {
  max-width: 620px;
  margin-bottom: 46px;
}

.lum-section-head.is-centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.lum-section h2 {
  font-size: 2.05rem;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}

.lum-section-head p {
  color: var(--lum-secondaire);
  font-size: 1.08rem;
}

/* Grille de cartes */
.lum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.lum-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.lum-card {
  background: var(--lum-blanc);
  border: 1px solid var(--lum-bleu-clair);
  border-radius: var(--lum-radius);
  padding: 30px;
  box-shadow: var(--lum-ombre-douce);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.lum-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--lum-ombre);
}

.lum-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.lum-card p {
  color: var(--lum-secondaire);
}

.lum-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--lum-bleu-clair);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

/* Bandeau exemple / avertissement */
.lum-notice {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--lum-bleu-clair);
  border: 1px solid #cfe1fb;
  border-radius: 14px;
  padding: 16px 20px;
  color: var(--lum-bleu-fonce);
  font-weight: 600;
}

.lum-notice svg {
  flex: 0 0 auto;
}

.lum-notice-inline {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--lum-bleu-clair);
  color: var(--lum-bleu-fonce);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}

/* Illustration immeuble reutilisable */
.lum-illus {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 30px rgba(29, 111, 224, 0.18));
}

/* Cartes programme */
.lum-programme {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 0;
}

.lum-programme-visual {
  background: linear-gradient(165deg, #eaf2fd 0%, #d6e7fc 100%);
  padding: 26px 26px 0;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 190px;
}

.lum-programme-body {
  padding: 26px 28px 30px;
}

.lum-programme-loc {
  color: var(--lum-bleu);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.lum-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.lum-tag {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lum-secondaire);
  background: #f2f7fe;
  border: 1px solid var(--lum-bleu-clair);
  padding: 5px 12px;
  border-radius: 999px;
}

/* Liste d'atouts */
.lum-list {
  list-style: none;
  display: grid;
  gap: 14px;
}

.lum-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--lum-secondaire);
}

.lum-check {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--lum-bleu);
  color: var(--lum-blanc);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  margin-top: 3px;
}

/* Split (texte + illustration) */
.lum-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  align-items: center;
}

.lum-split-visual {
  background: linear-gradient(165deg, #f0f6ff 0%, var(--lum-bleu-clair) 100%);
  border-radius: var(--lum-radius);
  padding: 40px;
  display: flex;
  justify-content: center;
}

/* Bloc appel a l'action */
.lum-cta {
  background: linear-gradient(135deg, var(--lum-bleu) 0%, #3a86ea 100%);
  border-radius: 26px;
  padding: 58px 48px;
  text-align: center;
  color: var(--lum-blanc);
  box-shadow: var(--lum-ombre);
}

.lum-cta h2 {
  color: var(--lum-blanc);
  font-size: 2rem;
  margin-bottom: 12px;
}

.lum-cta p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 46ch;
  margin: 0 auto 26px;
  font-size: 1.08rem;
}

.lum-cta .lum-btn-primary {
  background: var(--lum-blanc);
  color: var(--lum-bleu);
}

.lum-cta .lum-btn-primary:hover {
  background: #f0f6ff;
}

/* Formulaire */
.lum-form {
  display: grid;
  gap: 18px;
}

.lum-field {
  display: grid;
  gap: 7px;
}

.lum-field label {
  font-weight: 600;
  font-size: 0.95rem;
}

.lum-field input,
.lum-field textarea {
  font-family: inherit;
  font-size: 1rem;
  color: var(--lum-encre);
  padding: 13px 16px;
  border: 1.5px solid var(--lum-bleu-clair);
  border-radius: 12px;
  background: #fbfdff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.lum-field input:focus,
.lum-field textarea:focus {
  outline: none;
  border-color: var(--lum-bleu);
  box-shadow: 0 0 0 4px rgba(29, 111, 224, 0.12);
}

.lum-field textarea {
  resize: vertical;
  min-height: 140px;
}

.lum-form-note {
  font-size: 0.9rem;
  color: var(--lum-secondaire);
}

.lum-contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 46px;
  align-items: start;
}

.lum-contact-mail {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--lum-bleu);
  word-break: break-word;
}

/* Contenu editorial (a propos, mentions) */
.lum-prose {
  max-width: 760px;
}

.lum-prose h2 {
  font-size: 1.5rem;
  margin: 38px 0 12px;
}

.lum-prose h2:first-child {
  margin-top: 0;
}

.lum-prose p {
  color: var(--lum-secondaire);
  margin-bottom: 16px;
}

.lum-prose ul {
  color: var(--lum-secondaire);
  margin: 0 0 16px 20px;
}

.lum-prose li {
  margin-bottom: 8px;
}

/* Statistiques d'ambiance (valeurs qualitatives, non chiffrees commerciales) */
.lum-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.lum-value h3 {
  color: var(--lum-bleu);
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.lum-value p {
  color: var(--lum-secondaire);
}

/* Pied de page */
.lum-footer {
  background: var(--lum-encre);
  color: #c7d3e4;
  padding: 54px 0 30px;
  margin-top: 20px;
}

.lum-footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}

.lum-footer .lum-brand {
  color: var(--lum-blanc);
  margin-bottom: 14px;
}

.lum-footer p {
  color: #9fb0c7;
  font-size: 0.95rem;
  max-width: 34ch;
}

.lum-footer h4 {
  color: var(--lum-blanc);
  font-size: 0.95rem;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.lum-footer ul {
  list-style: none;
  display: grid;
  gap: 9px;
}

.lum-footer a {
  color: #9fb0c7;
}

.lum-footer a:hover {
  color: var(--lum-blanc);
}

.lum-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: #8496b0;
}

/* Responsive */
@media (max-width: 860px) {
  .lum-hero-inner,
  .lum-split,
  .lum-contact-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .lum-hero h1 {
    font-size: 2.3rem;
  }

  .lum-hero p {
    max-width: none;
  }

  .lum-grid,
  .lum-grid-2,
  .lum-values,
  .lum-footer-top {
    grid-template-columns: 1fr;
  }

  .lum-hero-visual {
    order: -1;
  }
}

@media (max-width: 560px) {
  .lum-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .lum-section {
    padding: 56px 0;
  }

  .lum-cta {
    padding: 40px 24px;
  }
}